<?php

/**
 * This is the model class for table "language".
 *
 * The followings are the available columns in table 'language':
 * @property string $id
 * @property string $code
 * @property string $name
 */
class Language extends CActiveRecord {

    /**
     * Returns the static model of the specified AR class.
     * @param string $className active record class name.
     * @return Language the static model class
     */
    public static function model($className = __CLASS__) {
        return parent::model($className);
    }

    /**
     * @return string the associated database table name
     */
    public function tableName() {
        return 'language';
    }

    /**
     * @return array validation rules for model attributes.
     */
    public function rules() {
        // NOTE: you should only define rules for those attributes that
        // will receive user inputs.
        return array(
            array('code, name', 'required'),
            array('code', 'length', 'max' => 2),
            array('name', 'length', 'max' => 255),
            // The following rule is used by search().
            // Please remove those attributes that should not be searched.
            array('id, code, name', 'safe', 'on' => 'search'),
        );
    }

    /**
     * @return array relational rules.
     */
    public function relations() {
        // NOTE: you may need to adjust the relation name and the related
        // class name for the relations automatically generated below.
        return array(
        );
    }

    /**
     * @return array customized attribute labels (name=>label)
     */
    public function attributeLabels() {
        return array(
            'id' => Yii::t('default', 'ID'),
            'name' => Yii::t('default', 'Название'),
            'code' => Yii::t('default', 'Код'),
        );
    }

    /**
     * Retrieves a list of ID => Name pairs
     * 
     * @return array
     */
    public function findPairs() {
        $result = array();
        $languages = $this->dbConnection->createCommand()
                ->select('id, name')
                ->from('language')
                ->queryAll();
        foreach ($languages as $language) {
            $result[$language['id']] = $language['name'];
        }
        return $result;
    }

    /**
     * Retrieves a list of models based on the current search/filter conditions.
     * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
     */
    public function search() {
        // Warning: Please modify the following code to remove attributes that
        // should not be searched.

        $criteria = new CDbCriteria;

        $criteria->compare('id', $this->id, true);
        $criteria->compare('code', $this->code, true);
        $criteria->compare('name', $this->name, true);

        return new CActiveDataProvider($this, array(
                    'criteria' => $criteria,
                ));
    }
    
    /**
     * Find record ID by code
     * 
     * @param string    $code       Contains code of language
     * 
     * @return int
     */
    public function findIdByCode($code) {
        $result = $this->dbConnection->createCommand()
                ->select('id')
                ->from('language')
                ->where('code=:code', array(':code' => $code))
                ->queryScalar();
        return $result;
    }

}